1 La Grotte de la Glacière
Located at Chaux-lès-Passavant, 30 km from Besançon, in the middle of the forest, this open-air cave collects the cold air and water seeping from the vault to form a large reserve of ice, a phenomenon unique in Europe at this altitude of 525 m. A mineral exhibition of more than 5,000 crystals from the...
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